Pediastrum duplex var. reticulatum Lagerheim variety accepted

Pediastrum duplex var. clathratum (A.Braun) Lagerheim variety accepted

Pediastrum duplex var. asperum (A.Braun) Hansg. variety accepted

Pediastrum duplex var. rugulosum Racib. variety accepted

Pediastrum duplex var. subgranulatum Racib. variety accepted

Pediastrum angulosum var. asperum (A.Braun) Sulek variety homotypic synonym

Pediastrum duplex subsp. clathratum (A.Braum) Lagerheim subspecies homotypic synonym

Pediastrum duplex subsp. gracillimum W. & G.S.West subspecies accepted

Pediastrum duplex subsp. rugulosum Raciborski subspecies accepted

Pediastrum duplex subsp. reticulatum Lagerheim subspecies accepted

Pediastrum duplex subsp. cohaerens Chuang subspecies accepted

Pediastrum duplex var. duplex variety accepted

Pediastrum duplex subsp. duplex subspecies accepted

Pediastrum duplex var. punctatum (Willi Krieg.) Parra variety accepted

Pediastrum duplex subsp. punctatum (Krieger) Parra subspecies homotypic synonym

Pediastrum duplex var. brachylobum A.Braun variety accepted

Pediastrum duplex var. regulosum Racib. variety accepted

Pediastrum duplex var. cohaerens variety accepted

Pediastrum duplex var. rotundatum Lucks. variety accepted

Pediastrum pertusum var. asperum A.Braun variety homotypic synonym

Pediastrum duplex var. coronatum Raciborski, 1890 variety synonym

Pediastrum duplex var. subintegrum Racib. variety accepted

Pediastrum duplex var. pulchrum Lemmerm. variety accepted